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1. (WO2010072363) MINIATURE SPECTROMETER ONBOARD AN AUTOMOBILE WITH A MEASUREMENT DETECTOR AND A SINGLE REFERENCE DETECTOR
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/072363 International Application No.: PCT/EP2009/008999
Publication Date: 01.07.2010 International Filing Date: 15.12.2009
IPC:
G01N 21/31 (2006.01) ,G01N 21/27 (2006.01) ,G01N 21/05 (2006.01) ,G01N 21/03 (2006.01) ,G01N 21/85 (2006.01) ,F02D 41/14 (2006.01) ,G01N 21/35 (2006.01)
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
17
Systems in which incident light is modified in accordance with the properties of the material investigated
25
Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31
Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
17
Systems in which incident light is modified in accordance with the properties of the material investigated
25
Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
27
using photo-electric detection
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
01
Arrangements or apparatus for facilitating the optical investigation
03
Cuvette constructions
05
Flow-through cuvettes
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
01
Arrangements or apparatus for facilitating the optical investigation
03
Cuvette constructions
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
84
Systems specially adapted for particular applications
85
Investigating moving fluids or granular solids
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
D
CONTROLLING COMBUSTION ENGINES
41
Electrical control of supply of combustible mixture or its constituents
02
Circuit arrangements for generating control signals
14
Introducing closed-loop corrections
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
17
Systems in which incident light is modified in accordance with the properties of the material investigated
25
Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31
Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35
using infra-red light
Applicants:
CONTINENTAL AUTOMOTIVE FRANCE [FR/FR]; 1, avenue Paul Ourliac F-31100 Toulouse, FR (AllExceptUS)
BLANC, Jérémie [FR/FR]; FR (UsOnly)
L'HÉNORET, Benjamin [FR/FR]; FR (UsOnly)
MERLINA-BONNAFOUS, Laureen [FR/FR]; FR (UsOnly)
Inventors:
BLANC, Jérémie; FR
L'HÉNORET, Benjamin; FR
MERLINA-BONNAFOUS, Laureen; FR
Priority Data:
080737923.12.2008FR
Title (EN) MINIATURE SPECTROMETER ONBOARD AN AUTOMOBILE WITH A MEASUREMENT DETECTOR AND A SINGLE REFERENCE DETECTOR
(FR) SPECTROMÈTRE MINIATURE EMBARQUE DANS UN VÉHICULE AUTOMOBILE A DÉTECTEUR DE MESURE ET DÉTECTEUR DE RÉFÉRENCE UNIQUE
Abstract:
(EN) The invention relates to a device for measuring a spectrum of a light beam, in a previously selected range of wavelengths, said spectrum being generated by a sample to be analysed, said optical measurement device including at least one light source (12), a measurement cell (9) and a measurement detector (17) placed on an optical measurement path, said optical measurement path being travelled by an optical measurement beam emitted by the light source (12) and hitting the measurement cell (9), a self-calibration means suitable for taking into account the possible deflection of the light sources due to environmental or operating conditions, regardless of the presence or absence of a sample to be analysed in the measurement cell, said self-calibration means including a means (15) for creating an optical reference path travelled by an optical reference beam, emitted by the light source and not hitting the measurement cell, and a reference detector (18). Said measurement device is remarkable in that it is designed to be installed onboard an automobile and comprises a means (30, 31) for selectively mixing the optical measurement beam and the optical reference beam, the measurement detector (17) also acting as a reference detector (18).
(FR) Dispositif de mesure d'un spectre d'un faisceau lumineux, dans une plage de longueurs d'ondes préalablement choisie, ledit spectre étant généré par un échantillon à analyser, ledit dispositif de mesure optique comprenant au moins une source lumineuse (12), une cellule de mesure (9) et un détecteur de mesure (17) placés sur un chemin optique de mesure, ledit chemin optique de mesure étant parcouru par un faisceau optique de mesure issu de la source lumineuse (12) et rencontrant la cellule de mesure (9), des moyens d'auto calibration permettant de tenir compte de la dérive éventuelle des sources lumineuses du fait des conditions d'environnement ou d'utilisation, indépendamment de la présence ou de l'absence d'un échantillon à analyser dans la cellule de mesure, lesdits moyens d'auto calibration comprenant des moyens (15) de créer un chemin optique de référence parcouru par un faisceau optique de référence, issu de la source lumineuse et ne rencontrant pas la cellule de mesure, et un détecteur de référence (18). Ledit dispositif de mesure est remarquable en ce qu'il est conçu pour être embarqué dans un véhicule automobile et comporte des moyens (30, 31) de mélanger sélectivement le faisceau optique de mesure et le faisceau optique de référence, le détecteur de mesure (17) faisant également office de détecteur de référence (18).
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
US20110313635CN102265137FR2940447